Washmgton



(No Model.)

'H. P. J. KESSLER. v AUTOMATIC LOOKING DEVICE FOR TAGKLES'.

Patented Jan. 9, 1894.

1 I L" F L m UNITED STATES PATENT OFFICE.

HEINRICH PHILIPP JACOB KESSLER, OF OBERLAHNSTEIN, GERMANY.

AUTOMATIC LOCKING DEVICE FOR TACKLES.

SPECIFICATION forming part of Letters Patent No. 512,380, dated January 9, 1894.

Application filed May 18 1892. Serialllo. 438,494. (No model.) Patented in Germany July 18, 1891.110. 62,875, and in Austria-Hungary January 11, 1892, No. 2,875 and No. 47,364.

To all whom it may concern.-

Be it known that I, HEINRICH PHILIPP J A- ooB KEssLER, a subject of the King of Prussia, residing at Oberlahnstein, Germany, have invented a new and useful Self-Acting Rope- Lockin g Device for Tackles, (for which I have obtained a patent in Germany, No. 62,875, bearing date July 18, 1891, and in Austria- Hungary, No. 2,875 and No. 47,364, hearing date January 11, 1892,) of which the following is a specification.

The object of this invention is to lock, or retain automatically, raised loads.

In the accompanying drawings which form part of the specification, Figure 1 is a longitudinal sectional viewon the line ab of Fig. 3 showing the rope jamming or locking device out of use. Fig. 2 is a similar view but with actuated rope jamming device. Fig. 3 is a rear View of the same.

In all figures similar letters of reference indicate the same parts. I

The rope jamming or locking device consists of a casing B with cap D,'1oose roller A and segment G, bearing against stay or stop F. The rope O is laid over the pulley O in such a manner that the drawing rope comes to hang on the side of the roller A. When'the load is raised the drawing or pulling person occupies such a position that the drawing rope slides over the segment G. When the load is to be stopped or locked, the drawing-rope is allowed to go back; the latter then takes along with it the segment G turning about the pivot E, and the segment presses the roller A between the rope A and the cap D so that the roller A following the motion of the rope, jams the latter and prevents the lowering or sliding down of the load. -When the load or the empty load-rope is to be let 0%, the rope O is released by pulling the drawing-rope; the latter is then brought in a vertical position in which it does not touch longer the segment G.

Having now described the nature of myin- Vention, I claim- In a self acting rope jamming or locking device for tackles the'combination of a rope pulley with a casing in such a manner that a jamming space is formed on the side of the drawing rope, said jamming space converging toward upward, a roller situated loosely into said space, and an eccentric cam; especially as and for the purpose set forth.

In testimony whereof I sign this specification in the presence of two subscribing witnesses.

HEINRICH PHILIPP JACOB KESSLER.

Witnesses:

JEAN GRUND, ALVESTO S. HOGUE. 

